Shear force control for a terahertz near field microscope.

@article{Buersgens2007ShearFC,
  title={Shear force control for a terahertz near field microscope.},
  author={Federico Buersgens and G Acuna and Charles H Lang and S I Potrebic and Stephan Manus and Reinhard Kersting},
  journal={The Review of scientific instruments},
  year={2007},
  volume={78 11},
  pages={113701}
}
We report on the advancement of apertureless terahertz microscopy by active shear force control of the scanning probe. Extreme subwavelength spatial resolution and a maximized image contrast are achieved by maintaining a tip-surface distance of about 20 nm. The constant distance between scanning tip and surface results in terahertz images that mirror the… CONTINUE READING